80377231999 has 2 divisors, whose sum is σ = 80377232000. Its totient is φ = 80377231998.

The previous prime is 80377231933. The next prime is 80377232017. The reversal of 80377231999 is 99913277308.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80377231999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80377231199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40188615999 + 40188616000.

It is an arithmetic number, because the mean of its divisors is an integer number (40188616000).

Almost surely, 2^80377231999 is an apocalyptic number.

80377231999 is a deficient number, since it is larger than the sum of its proper divisors (1).

80377231999 is an equidigital number, since it uses as much as digits as its factorization.

80377231999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 80377231999 in words is "eighty billion, three hundred seventy-seven million, two hundred thirty-one thousand, nine hundred ninety-nine".